1.Hemophilia

2.Symptoms of Hemophilia - Bleeding in the mouth from a cut or bite or from cutting or losing a tooth.
Nosebleeds for no obvious reason.
Heavy bleeding from a minor cut.
Bleeding from a cut that resumes after stopping for a short time.

3.When is the disease usually detected... At birth or later in life? - It is detected very early because a dad with hemophilia usually passes it on to his son or daughter and the blood is tested through the abilical cord.

4. Frequency of carriers of this disease in the population?